Refraction through spherical lenses
Lens: A piece of transparent material (such as glass) whose two opposite regular surfaces are either curved or one is curved and the other is flat and which is used…
Diabetes and the Cornea: Understanding the Connection
Diabetes, a chronic condition characterized by high blood sugar levels, has widespread effects on the body. While most people are aware of its impact on organs like the heart, kidneys,…
Hirschberg Corneal Reflex Test
The Hirschberg test is a simple, non-invasive clinical test used to evaluate ocular alignment and detect strabismus (ocular misalignment).Strabismus, commonly known as squint, is a condition where the eyes do…
The Critical Role of Central Corneal Thickness in Eye Health
The human eye is a complex and delicate organ, and every part of it plays an important role in maintaining clear vision. One such important aspect of eye health is…
COLOUR VISION DEFICIENCY
Colour Vision Deficiency (CVD), commonly known as colour blindness, is a visual impairment where an individual has difficulty distinguishing certain colours. It occurs due to the improper functioning of cone…
Fusion
Fusion: A Key Component of Binocular Vision Fusion is the process by which the brain combines the visual information from both eyes into a single, unified image. It is a…
THE IMPACT OF SCREEN TIME ON BRAIN DEVELOPMENT
We live in a world where screens are an integral part of our daily lives. From smartphones and tablets to laptops and televisions, screens are ubiquitous, and their influence on…
Influence of optical aberration on visual acuity
Introduction: Aberrations are optical imperfections that causes light rays to deviate from their intended path leading to blurry or distorted images. They are of two types: Spherical aberration: Spherical…
Scleral Lenses
History- A scleral lens is a prototypical lens dating back to the early 1880s. Originally these lenses were designed by using a substance to take a mold of the eye.…
Neuro-Optometry: Vision Rehabilitation for Traumatic Brain Injury
Introduction Vision, as a multifaceted processing system, extends beyond mere visual acuity. A structured approach to evaluating and addressing visual deficits is essential for effective treatment. Such a systematic methodology…
THE EFFECTS OF PROLONGED SCREEN TIME ON VISION AND TIPS FOR PROTECTION
Introduction: In our digital age, screens are an integral part of our daily lives. Whether it's for work, entertainment, or socializing, many of us spend hours staring at our devices.…
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